Nicolaus august otto



(No Model.)

N. A. OTTO.

APPARATUS EEE HEATING TEE TGNTTTON TUBES 0T GAS MoToE ENGINES.

Patented Aug N. Putas. Plwnomnagnphr. wpa-mgm. D. C

"irre STATES ./rraiwr Ormea..

NICOLAUS AUGUST OTTO, OF COLOGNE, PRUSSTA, ASSIGNOR TO THE GAS MOTOREN FABRIK DEUTZ, OF DEUTZON-THF-RHINE, GERMANY.

APPARATUS FOR HEATING THE lGNlTlON-TUBES F GAS-MOTOR ENGINES.

SPECIFICATION forming pari; of Letters Patent No. 388,301, dated August 2l, 1888.

Application filed February 9, 1388. Serial No. 263,478.

(No model.) Patented in England December 29, 1887, No. 17,896; in

Belgium January 18, 1888. No. 80,305,11ndin Italy March 3l, 1888, No. 22,898.

To all whom, it may concern:

Be it known that I, NrcoLAUs AUeUs'r OTTO, a citizen of Prussia, residing at Cologne, in the German Empire, engineer, have invented cer- 5 tain new and useful Apparatus for Heating the Igniting-Tubes of GasMotor Engines, (for which I have obtained a patent in Belgium, January 18, 1888, No. 80,305; Italy, March 31, 1888, No. 22,898, and have made application for patentin Great Britain December 29, 1887,

No. 17,896,) of which the following is a specication.

This invention relates to apparatus for externally heating the tubes by means of which I5 the combustible charges of motor-engines are ignited; and it has for its object to effect such heating by the combustion of vapor produced by the volatilization of benzine or other volatile combustible liquid. For this purpose a 2o closed receptacle of spherical or other shape charged with combustible liquid is fitted at top with a tube reaching down inside the same to near thebottom,andhavinganinternal screwed thread through which is screwed a screw-rod, the lower end of which acts as a valve for more or less closing a small opening at the bottom of the receptacle, through which the combustible liquid can pass in regulated quantities into a pipe conducting it downward to a 3o point where external heat is applied for volatilizing the liquid as it iiows down. The resultng combustible vapor then passes through a continuation of the pipe to a nozzle or Bunsen burner, where it mixes and enters into combustion with the air. For heating the said pipe any convenient source ol' heat may be used, such as part of the heat produced by the combustion of the vapor itself or the heat radiated from the motor-engine; but by pref- 40 erence the necessary heat is supplied by fixing or forming round the supply-pipe a small annular chamber having at top a number of small jets and communicating by a small hole regulated by a screw-plug with the interior of the pipe, so that a portion of the vapor generated passes into the annular chamber and issues through the jets thereof. In order to produce the requisite quantity of vapor for supplying thesejets in the iirstinstauee, a cup 5o is fixed on the supply-pipe underneath the annular chamber, for the reception of a small quantity of volatile combustible liquid which is ignited.

The said apparatus may be employed in combination with any form of Bunsen or other burner and igniting-tube, such as that described in the specification to my application Serial No. 250,735. The accompanying drawing shows the apparatus so applied.

It is a closed reservoir charged with com- 6o bustible liquid, having an opening at top titted with a tubular plug, t', through which is screwed the rod @whose lower end closes more or less the small opening leading into the pipe a with shut-off cock m. rThe lower end ofthe pipe is bent upward and xcd in the nozzle a of the Bunsen burner, constructed as described in my said application.

Atp an annular chamber is lixed on the pipe u,which communicates therewith by a small 7o hole regulated by a screw-plug, q, and which has several small jets at top, so that some of the combustible vapor will pass from a into p, and being ignited on issuing from the jets will heat the pipe, so as to convert the whole of the descending liquid into vapor,which passes up into the burner,where it mixes with the air and is burned, as described in my said prior application. Below the chamberp is a cup, o, for the reception of a small quantity of intlamma- 8o ble liquid for heating the pipe on starting.

Having thus described the nature of my invention and the best means I know for carrying thesame into practical effect, l declare that what T claim is- 1. An apparatus for heating the ignitingtube ofa gas-motor engine, consist-ing ofa closed receptacle charged with combustible liquid, a pipe leading downward therefrom to a Bunsen or similar burner, and means for heating 9o the pipe to volatilize the liquid before it issues into the said burner, a vertical internallyscrew-threaded tube in the upper part of the receptacle containing the liquid, and a screwrod adjustable in the tube to more or less close 95 the upperend ofthe pipe leading to the burner, substantially as described.

2. An apparatus for heating the ignitingtube ofa gasmotor engine, consisting ofa closed receptacle charged with combustible liquid, 10o

a pipe leading downward therefrom to a Bunsen or similar burner, an internally-screw threaded tube in the upper part of the said receptacle, a Vertical screw-rod adjustable in said tube to more or less close the upper` end of the pipe leading to the burner, and a heater on the pipe to volatilize the liquid before it enters into the burner, composed of an annular cham ber arranged around the pipe beneath the burner and havingjet-openings in its top and communicating by an opening with the interior of the pipe, and a screw-plug for controlling said opening, substantially as shown and described.

In testimony whereofl have signed my name 15 to this speeieatiomiu the presence of two subscribing witnesses, this 26th day of January,

NICOLAUS AUGUST OTTO. lVitnesses:

PETER LANGEN,

K Zn, WILHELM RINCK,

Deutz. 

